The game uses a 3x3 square board. 2 players take turns to play,
either placing a red on an empty square, or changing a red to
orange, or orange to green. The player who forms 3 of 1 colour in a
Some puzzles requiring no knowledge of knot theory, just a careful
inspection of the patterns. A glimpse of the classification of
knots and a little about prime knots, crossing numbers and knot
Investigations based on an Indian game.
Here is a game for you to play with a friend. Try playing it a
Can you find any ways to help you win?
Do you think both players have got an equal chance of winning? If
not, why not?
The object of the game is for the red counter to get past the
four blue counters on the grid below.
How to play: